<!doctype html>
<html>
<head>
  <title>Graph 3D demo</title>

  <style>
    body {font: 10pt arial;}
  </style>

  <script type="text/javascript" src="../../dist/vis.js"></script>

  <script type="text/javascript">
    var data = null;
    var graph = null;

    function custom(x, y) {
      return Math.sin(x/50) * Math.cos(y/50) * 50 + 50;
    }

    // Called when the Visualization API is loaded.
    function drawVisualization() {
      // Create and populate a data table.
      data = [];
      // create some nice looking data with sin/cos
      var steps = 50;  // number of datapoints will be steps*steps
      var axisMax = 314;
      var axisStep = axisMax / steps;
      for (var x = 0; x < axisMax; x+=axisStep) {
        for (var y = 0; y < axisMax; y+=axisStep) {
          var value = custom(x,y);
          var valueRange = (value > 67) ? '67-100' :
              (value < 33) ? '0-33' :
                  '33-67';
          data.push({x:x,y:y,z:value,filter:valueRange,style:value});
        }
      }

      // specify options
      var options = {
        width:  '600px',
        height: '600px',
        style: 'surface',
        showPerspective: false,
        showGrid: true,
        showShadow: false,
        keepAspectRatio: true,
        verticalRatio: 0.5,
        filterLabel: 'values'
      };

      // Create our graph
      var container = document.getElementById('mygraph');
      graph = new vis.Graph3d(container, data, options);
    }
  </script>
  <script src="../googleAnalytics.js"></script>
</head>

<body onload="drawVisualization()">
<div id="mygraph"></div>

<div id="info"></div>
</body>
</html>
